[Tagging] tunnel=culvert

John Willis johnw at mac.com
Sat Oct 31 02:29:29 UTC 2015

> On Oct 30, 2015, at 12:03 AM, Martin Koppenhoefer <dieterdreist at gmail.com> wrote:
> IMHO, if you don't consider them significant enough to be mapped as a way you should maybe not map them at all.

+ 1 

These are small *culverts* - not bridges or tunnels for a main road - so they are already not a primary feature of the map. People assume there are culverts/ tunnels for everything unless there is a bridge - similar to power-lines over the road - no one thinks they have to watch out for the power-lines while driving. If a stream intersects and shares a node, it is a ford. Tunnels are not single points either. And single point bridges are equally as bad. Adding a smaller feature of a drain or stream (if it was a river culvert it should be easily mappable as a way) and not taking the time to do it right for the sake of a few clicks is not good mapping and should be strongly discouraged. 

Most people just run the road over the stream or drain, no nodes or anything. If you are going to take the time to tag a culvert, don't do it "half way" - make the  other node and create the culvert as a way under the road. Having a slightly inaccurate way position is much better than a hidden culvert node under a road way. 


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